The fact that BB even has to tweet this makes it seem that Nick might be the family member they actually portray as homophobic. People thought it would be Lucas but that wasn't the case at all even though he was prematurely labeled as such. Maybe that's why BD didn't feel a need to address the issue much more than he already had in previous interviews, cause he knew Lucas would come around in the span of a week. But Nick might be a completely different story.